Within the protection zone for a water project, any act of blasting, sinking a well, quarrying rock, and collecting earth, which endangers the safety of the water project, shall be prohibited.

在水工程保护范围内，禁止进行爆破、打井、采石、取土等危害水工程安全的活动。

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These are devices of different shapes you can stick in cracks or holes for protection without damaging the rock.

用这些不同形状的器械塞入裂缝和洞中以保护自己而不会破坏到岩壁。

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In treating the abutment rock a main principle of protection plus strengthening was adopted. Under this principle the construction was easier and dependable, and the effect was obvious.

坝肩岩体处理中确定以保护与加强为主的原则，施工简单可靠，效果较明显。

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If free soloing (using only rock shoes, without the protection of a rope) is the purest form of climbing, then aid soloing is the slowest, most cumbersome kind one can imagine, mixing, as it does, terror and tedium.

WSJ: Training for the Big Wall | By Michael J. Ybarra